Thrashing-machine and separator



(No Model.) I v J. P. MONNETT.

THRASHING MACHINE AND SEPARATOR.

No 436,182. Patented Sept. 9, 1890.

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UNITED STATES ATENT OFFICE.

JOHN P. MONNETT, OF LONG PINE, NEBRASKA.

THRASHlNG-MACHINE AND SEPARATOR.

SPECIFICATION forming part of Letters Patent No. 436,182, datedSeptember 9, 1890.

Application filed February 24:, 1890. Serial No. 341,479. (No model.)

T to whom it may concern.-

Be it known that 1, JOHN P. MONNETT, a citizen of the United States,residing at Long Pine, in the county of Brown and State of N ebraska,have invented certain new and useful Improvements in Thrashing-Machinesand Separators; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enable oth-I0 ers skilled in the art to which it appertains to make and use thesame.

My invention relates to improvements in thrashing-machines andseparators; and the object of the invention is to provide the ma- I 5chine with means which act to separate the the machine touniformlydistribute the straw over the surface of the grain-pan, andthus expedite the separation of the grain from the straw.

With these and other ends in view my invention consists in thecombination of devices and peculiar construction and arrangement ofparts, as will be hereinafter fully described.

To enable others to understand my inven- 0 tion, Iwill now proceed to adetailed description thereof in connection with the accompanyingdrawings, in which 1 Figure I is a plan view of a part of athrashing-machine with the top of the casing 5 removed to show myimprovements therein.

Fig. II is a longitudinal sectional view of a part of athrashing-machine having my improvements applied thereto. Figs. III andIV are enlarged views of the vertically-recip- 4o rocating bars, thecrank-shaft to which they are connected, and the parts of the machineadjacent thereto.

Like numerals of reference denote corresponding parts in all the figuresof the draw- 5 ings, referring to which- 1 designates the casing orframe, 2 the rotary cylinder, 3 the concave, and 4: the grainpan, of anordinary thrashing-machine.

In rear of the rotary cylinder and on a plane above the path of thestraw after it passes the cylinder and concave is arranged avertically-inclined grain-board 5, which exof line with the same.

in the vertical plane of the same.

tends from the cylinder toward the rear of the machine, and in rear ofthis grain-board is arranged a horizontal double-crank shaft 6, that isjournaled in suitable bearings 7 on the main frame or casing of tLemachine. The inclined grain-board is arranged between the double-crankshaft and the cylinder to prevent the straw from becoming entangled withand clogging the crank-shaft, and said shaft is arranged parallel withthe grainboard and the cylinder, as shown. This crank-shaft is providedwith two series of cranks 8 9, one series of cranks 8 being situated onone side of the longitudinal axis of the shaft and the other series ofcranks '9 being situated on the opposite side of said shaftdiametrically opposite the cranks 8, but out This double-crank shaftoperates two series of reciprocating fingers or spikes 10 11, which arepivotally connected to the cranks 8 9, respectively, of

the crank-shaft 6. The series ofifingers or spikes are arranged tooperate in vertical planes and are successively projected or forced andwithdrawn from the straw by the cranks on the shaft 6 after the strawpasses the cylinder,-one series of fingers being forced into the strawas the other series of fingers is withdrawn therefrom."

These reciprocating fingers are guided in oscillating bars or shafts 1213, which are arranged parallel with each other and situated above or onthe plane of the lower edge of the inclined grain-board, saidoscillating bars or shafts being journaled in stationary bearings on themain frame of the machine in order to serve as the fulcrum of the twoseries of the reciprocating fingers 1O 11. These bars or shafts l2 l3lie below the crank-shaft nearly They are suitably journaled in the mainframe or casin g, and each shaft or bar is provided with a series ofapertures or perforations through which the reciprocating fingersoperate, the perforations 12' in the guide bar or shaft 12 beingarranged out of line with the perforations 13 in the adjoining guide baror shaft 13, as will be seen by reference to Fig. I, in order toaccommodate both series of fingers. These oscillating guide bars orshafts serve two useful purposes-first, as the fulcrum or turning-pointof the series of fingers, in order 'will be seen that when thecrank-shaft is 1'0- tated in the direction indicated by the arrow thecranks 8 are nearly at theirlowest position and the fingers 10 are in adepressed position to enter the straw and incline toward the front ofthe machine and the cylinder. As the shaft rotates, the cranks 8 passthe downcenter, and the rock-shaft 12 rocks or oscillates to permit thefingers to swing or move in an arc of a circle and from the front towardthe rear of the machine to assume the position shown in Fig. IV, wherebythe fingers are projected into the straw, caused to separate the same,and carry the straw from a point in rear of the cylinder to therakerbars. As the series of fingers 9 are projected into the strawflthefingers 9 are withdrawn therefrom, and as the fingers 8 are withdrawnfrom the straw at the angle shown the fingers 9 are projected or forcedinto the straw at a point just in rear of the cylinder, the action ofthe fingers 9 being precisely the same as the fingers 8. It will be seenthat the two series of fingers act continuously on the straw to carrythe straw away from the cylinder and that the straw is separated orspread out by the action of the fingers before it reaches theraker-bars.

In rear of the vertically-reciprocating fingers 8 9, I have provided aseries of longitudinal raker-bars 15, each of which is provided withdepending pickers 16, which act upon the straw as the raker-bars aredepressed and carried rearward, so that the pickers operate to separatethe grain from the straw, to spread the straw out uniformly or evenlyover the entire surface of the grain-pan 4., and to gradually carry thestraw to the rear or discharge end of the machine.

The raker-bars extend longitudinally of the machine nearly the entirelength of the same-that is, from a point just in rear of thevertica1ly-reciprocating fingers and the grainboard to the extreme rearend of the machine-whereby said raker-bars are caused to moreefficiently separate the grain from the straw and to uniformly spreadout the straw over the grain-pan 4t and over the vibrating rake-arms 2O21, which are carried by the rock-shafts 22 and located on the upperside of the grain-pan.

The longitudinal raker-bars are carried by two double-crank shafts 1718, which are arranged parallel with each other and extend transverselyacross the machine above the grain-pan, and each crank-shaft has adouble series of cranks 19 19, which are situated on dametrically-opposite sides of the axis of the shafts. The raker-bars arepivotally connected to corresponding cranks on both shafts, and saidbars are carried by the cranks as the shafts rotate from the fronttoward the rear end of the machine, then lifted to the upper or top sideof the casing and carried forward to the front of the machine, and againdepressed into the straw to resume the operation, each raker-bar beingcarried in this manner in order to move the straw to the rear andagitate and spread the straw over the grain-pan and the vibratingrake-arms 2O 21.

Changes in the form and proportion of parts and details of constructioncan bemade without departing from the spirit or sacrificing theadvantages of my invention.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is

1. In a thrashing-machine and separator, the combination of a cylinder,a crank-shaft having the double row or series of cranks, the independentrocking guide-bars situated side by side and below the crank-shaft, andthe independent series of fingers fitted in apertures in said guide-barsand connected to the cranks of the shaft, as and for the purposedescribed. 5

2. In a thrashing-machine and separator, the combination of a cylinder,adouble-crank shaft located in rear of the cylinder and above the pathof the grain, an inclined grain-board situated between the cylinder andthe crankshaft, the independent rocking guide-bars arranged below thecrank-shaft and in rear of said grain-board, and the two series offingers fitted in the respective guide-bars and conneeted to the cranksof the crank-shaft, sub stantially as described.

3. In a thrashing-machine, the combination of a cylinder, a crank-shaftarranged in. rear of the cylinder above the same and having thealternate cranks S 9, arranged on opposite sides of the axis thereof,the rock-shafts journaled in stationary bearings on the main frame ofthe machine and arranged below the crank-shaft, the series of alternatefingers connected to the cranks of the crank-shafts, and the inclinedgrain-board arranged between the cylinder and the crank and rock shafts,as and for the purpose described.

In testimony whereof I affix my signature in presence of two witnesses,

